[darinpantley]

As a long-time user of the Up button, I completely agree.

With the new system, the parent button (i.e. "Up", as NumberFiveAlive pointed out) is always in a different location, labeled with different text. How confusing! Microsoft replaced the notion of "I want to go up" with "I want to open folder X". Great for new users, not great for me.

The new system makes a lot of sense for people who don't understand nested file-systems and just want to open Folder X... "oh look, there it is, click". Also, the old Up button doesn't make a lot of sense in the context of a hierarchy laid out horizontally, so I can see why Microsoft would want to revamp their interface.

For those of us who do understand that directories contain other directories, the option to enable the Up button again would be a welcome "new" addition to the address bar. Sometimes it's more convenient to click on a button than to reach for a hotkey.